Abstract: A half pipe cannula has a first portion and a second portion. The first portion, which includes a proximal end and an elongated tab along the length of the first portion, can be formed from a first material with a selected rigidity. The second portion, which includes a proximal end, a cannulated passage, and a distal end, can be formed from a second material with a selected flexibility. The second portion of the half pipe cannula partially or fully overlaps the elongated tab of the first portion of the half pipe cannula. The second portion of the half pipe cannula has surface features such as a thread or bumper feature. Each portion of the half pipe cannula may have one or more flanges on either end or both ends. The second portion of the half pipe cannula can be made of a flexible material such as thermoplastic elastomer.

Abstract: A new process of manufacturing a hybrid cannula may include creating a first part with at least two components, overmolding at least two components of a second part to a channel in each component of the first part, and fixing the components of the first part together. The second part may include various types of features such as thick/thin dams, squirt membranes, and/or duck bill dams inside the hybrid cannula. Each dam may have any number, shape, orientation, and length of slits/openings. The slits/openings may allow passage of an instrument while the dam(s) may prevent fluid from passing through the hybrid cannula. A third part may optionally be overmolded to at least a portion of the first part, at least a portion of the second part, or both. The third part may provide an extension, a flange, or a combination thereof at a distal end of the hybrid cannula.

Abstract: A hybrid cannula may comprise a rigid portion overmolded with a flexible portion. The rigid portion at its proximal end may comprise a rigid flange for preventing the proximal end of the hybrid cannula from being pushed through the portal. The flexible portion may comprise a dam within the passage of the hybrid cannula, the dam defining interior spaces thereof between the proximal and distal ends of the hybrid cannula. The flexible portion's distal end may comprise a variety of features extending therefrom, including a flange and/or a cannulated tip. The flexible portion's proximal end may further comprise a membrane to prevent liquid from projecting during insertion of a tool into the dam and/or removal of the tool from the dam. The hybrid cannula can be useful in minimally invasive surgical procedures, including arthroscopic and endoscopic surgeries.

Abstract: A new process of manufacturing a hybrid cannula may include creating a first part with at least two components, overmolding at least two components of a second part to a channel in each component of the first part, and fixing the components of the first part together. The second part may include various types of features such as thick/thin dams, squirt membranes, and/or duck bill dams inside the hybrid cannula. Each dam may have any number, shape, orientation, and length of slits/openings. The slits/openings may allow passage of an instrument while the dam(s) may prevent fluid from passing through the hybrid cannula. A third part may optionally be overmolded to at least a portion of the first part, at least a portion of the second part, or both. The third part may provide an extension, a flange, or a combination thereof at a distal end of the hybrid cannula.

Abstract: A hybrid cannula may comprise a first portion formed from a first material, a second portion formed from a second material overmolded to the first portion, a third portion formed from a third material and a fourth portion formed from a fourth material overmolded to the third material. The third portion is coupled to the first portion. The first portion may prevent the proximal end of the hybrid cannula from being pushed through a portal. The second portion may include a membrane and the fourth portion may include a dam, the dam defining interior spaces thereof between the proximal and distal ends of the hybrid cannula. The membrane and/or dam may prevent liquid from projecting during insertion or removal of instruments. The distal end of the hybrid cannula may comprise a variety of features.

Abstract: A hybrid cannula may comprise a rigid portion overmolded with a flexible portion. The rigid portion at its proximal end may comprise a rigid flange for preventing the proximal end of the hybrid cannula from being pushed through the portal. The flexible portion may comprise a dam within the passage of the hybrid cannula, the dam defining interior spaces thereof between the proximal and distal ends of the hybrid cannula. The flexible portion's distal end may comprise a variety of features extending therefrom, including a flange and/or a cannulated tip. The flexible portion's proximal end may further comprise a membrane to prevent liquid from projecting during insertion of a tool into the dam and/or removal of the tool from the dam. The hybrid cannula can be useful in minimally invasive surgical procedures, including arthroscopic and endoscopic surgeries.

Abstract: A hybrid cannula may comprise a rigid portion overmolded with a flexible portion. The rigid portion at its proximal end may comprise a rigid flange for preventing the proximal end of the hybrid cannula from being pushed through the portal. The flexible portion may comprise a dam within the passage of the hybrid cannula, the dam defining interior spaces thereof between the proximal and distal ends of the hybrid cannula. The flexible portion's distal end may comprise a variety of features extending therefrom, including a flange and/or a cannulated tip. The flexible portion's proximal end may further comprise a membrane to prevent liquid from projecting during insertion of a tool into the dam and/or removal of the tool from the dam. The hybrid cannula can be useful in minimally invasive surgical procedures, including arthroscopic and endoscopic surgeries.

Abstract: A new process of manufacturing a hybrid cannula may include creating a first part with at least two components, overmolding at least two components of a second part to a channel in each component of the first part, and fixing the components of the first part together. The second part may include various types of features such as thick/thin dams, squirt membranes, and/or duck bill dams inside the hybrid cannula. Each dam may have any number, shape, orientation, and length of slits/openings. The slits/openings may allow passage of an instrument while the dam(s) may prevent fluid from passing through the hybrid cannula. A third part may optionally be overmolded to at least a portion of the first part, at least a portion of the second part, or both. The third part may provide an extension, a flange, or a combination thereof at a distal end of the hybrid cannula.

Abstract: A hybrid cannula may comprise a first portion formed from a first material, a second portion formed from a second material overmolded to the first portion, a third portion formed from a third material and a fourth portion formed from a fourth material overmolded to the third material. The third portion is coupled to the first portion. The first portion may prevent the proximal end of the hybrid cannula from being pushed through a portal. The second portion may include a membrane and the fourth portion may include a dam, the dam defining interior spaces thereof between the proximal and distal ends of the hybrid cannula. The membrane and/or dam may prevent liquid from projecting during insertion or removal of instruments. The distal end of the hybrid cannula may comprise a variety of features.